Understanding Linux Network Internals 2005 phần 9 ppsx
Understanding Linux Network Internals 2005 phần 9 ppsx
... down
The networking subsystem has to disable all the routes associated with the device. This is done by fib_sync_down, described in
Chapter 32.
When a device is enabled or re-enabled
The networking ... the network stack and how big routing tables can be, it is important to have efficiently designed routing
tables to speed up operations, particularly lookups. This chapter describes how Li...
Understanding Linux Network Internals 2005 phần 8 ppsx
... simplest form, a router can be defined as a network device that is equipped with more than one network interface card (NIC), and
that uses its knowledge of the network to forward ingress traffic appropriately.
[*]
[*]
... http://www.simpopdf.com
29. 4. Files and Directories Featured in This Part of the Book
Figure 29- 5 shows the main files and directories referred to in the chapter...
Understanding Linux Network Internals 2005 phần 1 pps
... Checksums
Chapter 19. Internet Protocol Version 4 (IPv4): Linux Foundations and Features
Section 19. 1. Main IPv4 Data Structures
Section 19. 2. General Packet Handling
Section 19. 3. IP Options
... publisher, and ISBN. For example:
" ;Understanding Linux Network Internals, by Christian Benvenuti. Copyright 2006 O'Reilly Media, Inc., 0- 596 -00255-6."
This...
Understanding Linux Network Internals 2005 phần 2 pdf
... one is defined in include /linux/ mod_devicetable.h, and the other two are defined in include /linux/ pci.h.
pci_device_id
Device identifier. This is not a local ID used by Linux, but an ID defined ... snapshot from the drivers/net/3c59x.c driver of kernel 2.2.14: note how many times #ifdef MODULE and #if defined (MODULE)
are used.
#if defined(MODULE) && LINUX_ VERSION_CODE > 0...
Understanding Linux Network Internals 2005 phần 3 pptx
... values shown in Figure 9- 4. As avg_blog hits one of the thresholds
shown in the figure, cng_level changes value. The definitions of the NET_RX_XXX enum values are in include /linux/ netdevice.h, and ... also updates cng_level, basing it on avg_blog through the mapping shown earlier in Figure 9- 4 in Chapter 9. If the
RAND_LIE symbol is defined, the function performs an extra operation i...
Understanding Linux Network Internals 2005 phần 4 docx
... in increments of 4, 096 (2
12
).
There is a new component in the bridge ID, called the system ID extension. This component, which can assume 4, 096
different values, allows a network device, for ... compared to the network& apos;s max age and the frame is dropped if it is too old. The Message Age timer runs on
nondesignated ports (i.e., the ones that receive superior BPDUs).
In a stable...
Understanding Linux Network Internals 2005 phần 5 pdf
... program such as ifconfig.
[]
If you are interested in more details, I suggest you read RFCs 791 , 1 191 , and 292 3.
Let's see how PMTU discovery works. The algorithm simply takes advantage of the ... requested by RFC 1 191 , section 3.0 (and indirectly by RFC 791 ,
section "Fragmentation and reassembly"). See also the section "Expiration Criteria" in Chapter 33.
In...
Understanding Linux Network Internals 2005 phần 6 ppt
... www.oreilly.com (208.201.2 39. 36) 56(84) bytes of data
64 bytes from www.oreillynet.com (208.201.2 39. 36): icmp_seq=0 ttl=50 time=245 ms
64 bytes from www.oreillynet.com (208.201.2 39. 36): icmp_seq=1 ttl=50 ... are of the IP protocol. IPv4 was designed almost
25 years ago (in 198 1), and given the speed with which the Internet and network services have evolved since then, the protocol i...
Understanding Linux Network Internals 2005 phần 7 pot
... Unregistered Version - http://www.simpopdf.com
commands, among other things (see Table 29- 1 in Chapter 29) . Protocol code can use this flag to enforce a minimum lifetime for
an L2 address (see, ... interfaces to change the link layer address of a neighbour structure, as shown in Figure 29- 1 in
Chapter 29. The function can also be used by the neighboring protocols themselves, but it is no...
Understanding Linux Network Internals 2005 phần 10 pdf
... subjects.
Philip Dangler was the production editor, and Audrey Doyle was the copyeditor for Understanding Linux Network Internals. Sada Preisch
proofread the book. Mary Brady and Colleen Gorman provided ... of
network device initialization, list of
networking, list of
notification chains, list of
PCI layer, list of
protocol handlers, list of
transmission and reception, list of...